44444448888890 has 16 divisors (see below), whose sum is σ = 80000086938408. Its totient is φ = 17777762013696.

The previous prime is 44444448888887. The next prime is 44444448888899. The reversal of 44444448888890 is 9888884444444.

It is a Cunningham number, because it is equal to 6666667²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 44433702871321 + 10746017569 = 6665861^2 + 103663^2 .

It is not an unprimeable number, because it can be changed into a prime (44444448888899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14499254 + ... + 17295006.

Almost surely, 2^{44444448888890} is an apocalyptic number.

44444448888890 is a deficient number, since it is larger than the sum of its proper divisors (35555638049518).

44444448888890 is a wasteful number, since it uses less digits than its factorization.

44444448888890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385473.

The product of its (nonzero) digits is 4831838208, while the sum is 77.

The spelling of 44444448888890 in words is "forty-four trillion, four hundred forty-four billion, four hundred forty-eight million, eight hundred eighty-eight thousand, eight hundred ninety".